Colorizer round6: palette evaluation 7000

.gitattributes

@@ -76,3 +76,4 @@ experiments/round6-20260928/palette_3000.jpg filter=lfs diff=lfs merge=lfs -text
 experiments/round6-20260928/palette_4000.jpg filter=lfs diff=lfs merge=lfs -text
 experiments/round6-20260928/palette_5000.jpg filter=lfs diff=lfs merge=lfs -text
 experiments/round6-20260928/palette_6000.jpg filter=lfs diff=lfs merge=lfs -text
+experiments/round6-20260928/palette_7000.jpg filter=lfs diff=lfs merge=lfs -text

experiments/round6-20260928/SHA256SUMS.json

@@ -63,7 +63,7 @@
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@@ -105,6 +108,8 @@
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experiments/round6-20260928/history.json

@@ -494,5 +494,36 @@
         "raw_patch_excess": 0.9646442662277777
       }
     }
+  },
+  {
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+    "eligible": false,
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+    "summary": {
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 ]

experiments/round6-20260928/palette/step_07000/README.md

@@ -0,0 +1,5 @@
+# Experimental semantic colorizer
+
+Head: palette. Parameters: 3994676.
+
+Not approved for production. Requires semantic_model.py; incompatible with the old U-Net loader. Input is Lab lightness normalized to [-1,1]; output is Lab ab. See the run protocol, provenance, selection and visual comparisons. Predictions are plausible colors, not recovered historical truth.

experiments/round6-20260928/palette/step_07000/config.json

@@ -0,0 +1,7 @@
+{
+  "architecture": "SemanticColorizer",
+  "head": "palette",
+  "width": 128,
+  "queries": 16,
+  "format_version": 1
+}

experiments/round6-20260928/palette/step_07000/model.safetensors

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